EP2630293B1 - Unité de formation de feuille pour fabriquer une bande de matériau et procédé pour faire fonctionner l'unité de formation de feuille - Google Patents

Unité de formation de feuille pour fabriquer une bande de matériau et procédé pour faire fonctionner l'unité de formation de feuille Download PDF

Info

Publication number
EP2630293B1
EP2630293B1 EP11761603.7A EP11761603A EP2630293B1 EP 2630293 B1 EP2630293 B1 EP 2630293B1 EP 11761603 A EP11761603 A EP 11761603A EP 2630293 B1 EP2630293 B1 EP 2630293B1
Authority
EP
European Patent Office
Prior art keywords
forming
loop
white
outer fabric
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11761603.7A
Other languages
German (de)
English (en)
Other versions
EP2630293A1 (fr
Inventor
Christian Schmid
Ulrich FLÜHLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2630293A1 publication Critical patent/EP2630293A1/fr
Application granted granted Critical
Publication of EP2630293B1 publication Critical patent/EP2630293B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/36—Guiding mechanisms
    • D21F1/40—Rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type

Definitions

  • the invention relates to a sheet forming unit of a paper machine, in particular a tissue machine, for producing a fibrous web, with a headbox emitting a suspension jet and with a respective inner loop and outer screen forming a loop.
  • a forming element Within the loop of the inner wire is a forming element and within the loop of the outer wire are guide rollers and a wire pit for receiving the incurred in the region of the forming element white water, arranged.
  • the inner screen and the outer screen form a gap for receiving the suspension jet and at least partially wrap around the forming element in a looping area.
  • the invention relates to a method for operating a sheet forming unit.
  • the document WO 00/73581 A1 discloses a crescent former for making a tissue web with a dewatering air press and a Yankee drying cylinder for drying the tissue web. It is provided a headbox for introducing a suspension jet between two fabrics. The fabrics enclose together a breast roll. In the loop of the outer clothing deflecting elements and a white water container for receiving the centrifuged white water are provided in the region of the breast roll.
  • EP 1424437 A1 is a twin-wire former of a machine for producing a fibrous web, in particular a paper or board web, described. It comprises a continuous endless upper sieve and a circulating endless lower sieve, which converge in the region of a forming element, and at least one white water collecting container.
  • at least one guide element is provided via the white water obtained in the former to the white water collecting container so that there is an at least substantially smooth white water surface in this.
  • a guide device is present in the region of a guide element of the outer screen outside the outer screen.
  • the publication EP 1382740 A1 shows a wire section for producing a multi-ply fibrous web, from at least one pulp suspension with a belt on which runs at least a first pulp layer, with a twin-wire section with a forming roller and with a first and a second sieve (upper sieve, lower sieve), the one another in sections Forming a twin-wire zone in which a second fibrous layer is produced, and having a lower vertex-joining section merging the first and second fibrous layers to form a multi-layer fibrous web.
  • the two screens are in the area of the twin-wire zone over a peripheral region of at least one Wrinkle device led.
  • the forming roller is followed by a dewatering section in the form of a D-part.
  • a sheet forming unit of a paper machine for producing a fibrous web, with a suspension jet emitting headbox and with a respective loop forming inner wire and outer wire, wherein within the loop of the inner wire a forming element and within the loop of the outer wire guide rollers and a Siebwasserkasten for receiving the incurred in the region of the forming element white water, are arranged, wherein the inner wire and the outer wire form a gap for receiving the suspension jet and at least partially wrap around the forming element in a wrap.
  • a machine-wide guide element is arranged in the looping area within the loop of the outer screen such that the white water is formed into a jet and directed into the wire pit such that a contact surface between the jet and the space formed by the loop of the outer screen arises for receiving water mist, wherein between the guide element and the forming element, a gap is formed and the course of the guide element substantially follows the contour of the forming element and so eterrorismit is that the gap seen in the running direction has a divergent course, and / or that in At least one of the guide rollers of the outer screen at least one machine-wide guide device is provided outside of the space formed by the loop of the outer screen, wherein the guide device (17, 18) in erection forms a convergent gap to Aussensiebs (6).
  • the outer screen and the inner screen are designed, for example, as Formiersiebe.
  • the outer screen is as Formiersieb, preferably with zonal different permeability, and the inner wire out as a felt out.
  • the outer screen may have patterns for forming images and ornaments in the fibrous web.
  • the outer sieve is designed as a forming fabric, preferably with zonal different permeability, and the inner sieve as a structured sieve.
  • Structured sieves are known from the production of voluminous tissue papers, for example in so-called through-air tissue machines.
  • the outer sieve can have patterns which are suitable for producing images and ornaments in the fibrous web.
  • the machine-wide guide element seen in the beam direction, ends before the wire pit. This creates a sufficiently long jet of white water, which in turn allows a sufficiently long contact surface to the space formed by the loop of Aussensiebes to suck by themaschinestrahl bin the water mist from this space to absorb and dissipate.
  • the contact surface is preferably in direct contact with the space formed by the loop of the outer screen.
  • the guide element protrudes into the wire pit only so far that the required contact surface for sucking the water mist is ensured from the space formed by the loop of the outer screen.
  • the length of the opening of the wire pit is in a practical case less than 1m, preferably less than 0.6m. This avoids that the water mist absorbed by the white water jet due to vortex formation can partially return back into the space formed by the loop of the outer screen.
  • the length of the contact surface, seen in the running direction or in the flow direction of the beam more than 100mm, preferably more than 150mm, in particular more than 200mm.
  • the guide element is designed so that the formed white water jet is not deflected substantially.
  • the forming element preferably has an open surface to promote dewatering of the fibrous web.
  • the forming element may be evacuated.
  • the forming element is formed by a roller.
  • the screen water leaving the outer sieve collects in the intermediate space and flows along the guide element in the direction of the white water box.
  • the course of the guide element is chosen so that the intermediate space, seen in the running direction of the outer screen, has a divergent course.
  • the course of the guide element is chosen so that the initial distance to the forming element at the beginning of the gap between 10mm and 60 mm, preferably between 20 and 40mm.
  • the divergence of the gap extends from the initial distance to a distance of greater than 30mm, preferably greater than 40mm, in particular greater than 50mm after a distance corresponding to an angle of about 90 ° of the wrap.
  • the beginning of the guide element is arranged so that the passing through the outer wire white water of the headbox jet is received.
  • the beginning of the guide element is arranged substantially on the imaginary extension of the headbox jet.
  • the Siebwasserkasten on deflection devices for the lateral deflection of the supplied white water and entrained water mist on.
  • the lateral deflection takes place transversely to the direction of the paper machine, preferably to the drive side.
  • the deflection devices consist of bent or preferably bevelled sheets.
  • each case two adjacent deflecting devices form a channel, that is to say a flow channel for the white water, wherein the spacing of the deflecting devices is so small that the flow vortex extending into the space formed by the loop of the outer sieve is avoided.
  • the deflection devices have surfaces which are inclined relative to one another by a deflection angle, the deflection angle in the flow direction between adjacent surfaces being less than 20 °. This avoids vortexes and backflows.
  • the at least one arranged in the region of the guide rollers of the outer screen outside the space formed by the loop of the outer sieve guide in the running direction forms a convergent gap with the outer screen.
  • the gap has an initial height of less than 150 mm, preferably less than 100mm, in particular less than 80 mm and a final height of less than 50 mm, preferably less than 30 mm, in particular less than 10mm.
  • the guide head adjacent to the headbox is associated with a guide device such that the space formed by the guide device and by the outer wire can be sucked by the driving jet effect of the suspension jet.
  • the accumulating in this room water mist is discharged through the headbox jet in the white water box.
  • the invention is particularly advantageous to apply at screen speeds of more than 1400m / min, preferably more than 1500m / min, especially at more than 1600m / min.
  • Another aspect of the invention for achieving the object relates to a method for operating a sheet forming unit of a paper machine according to claim 9. Further features and advantages of the invention will become apparent from the following description of preferred embodiments with reference to the drawings.
  • FIG. 1 is a schematic representation of an embodiment of a sheet forming device 1 of a tissue machine according to the invention shown in longitudinal section.
  • the inner wire 5 wraps around the forming element 7, which is formed by a forming roller, and carries the formed fibrous web 2 to a transfer point for transferring the fibrous web 2 to a subsequent clothing or directly to the next, not shown, process section.
  • This may alternatively or in combination comprise a stand-alone press, a press formed from a press roll and a drying cylinder, a drying, creping and winding device.
  • the outer wire 6 wraps together with the inner wire 5, the forming roller 7 on a wrap 14. This is preferably more than 90 °.
  • the inner wire 5 and the outer wire 6 form an inlet gap for receiving the suspension jet 4 delivered by a headbox 3.
  • the suspension is dewatered in the region of the forming roller 7 and the fibrous web 2 is formed.
  • the drainage takes place mainly through the outer sieve 6.
  • the screened water 13 tangentially emerging through the outer screen 6 is collected by the guide element 15 and deflected so that a white water jet 13 is formed.
  • the beginning of the guide element 15 is located in the region of an imaginary extension of the headbox jet 4, so that the entrained by the outer sieve 6 white water 13 is collected.
  • the starting distance of the guide element 15 to the inside of the outer screen 6 is 30 mm at the beginning of the guide element 15 in this example.
  • the distance after a distance which corresponds approximately to an angle of 90 ° of the wrap, increases to 45 mm, so that there is a divergent gap. Thereafter, the curvature of the guide element decreases, whereby the divergence increases further.
  • a screen water box 12 is arranged downstream of the guide element 15, into which the white water jet 13 discharges.
  • the guide element is not immersed too deep in the white water box 12, but that a free jet length of the white water jet 13 is ensured to produce a sufficient contact surface at least one side of the white water jet 13 to the space formed by the loop of the outer screen 16.
  • the contact area in this example is more than 150mm. This contact surface generates a suction effect according to the propellant jet principle, whereby the water mist is removed in the space 16 and discharged together with the white water 13 via the white water box 12.
  • complex pipelines, hoods and blowers for water mist extraction can be omitted in comparison to the prior art.
  • the cross section of the white water tank for receiving the white water 13 is dimensioned so that no vortex formation is possible.
  • the length of the opening of the white water box 12 is in this practical case, preferably less than 0.6m. This avoids that the water mist absorbed by the white water jet due to vortex formation can partially return back into the space formed by the loop of the outer screen.
  • the recorded white water 13 with water mist is deflected within the white water box 12 to the side, preferably to the drive side, and dissipated. The deflection takes place by deflecting devices 24, which are installed in the wire pit 12. Adjacent deflection devices 24 each form a flow channel.
  • the outer wire 6 is separated from the inner wire 5, wherein the formed fibrous web 2 is led away together with the inner wire 5.
  • the Outer sieve 6 is returned via guide rollers 8, 9, 10, 11 back to forming element 7.
  • a white water boat 23 is provided below and the side facing away from the forming element of the loop of the outer sieve 6, for receiving Siebwassers and water mist entrained by the outer sieve 6 in the fabric and on its surface.
  • the white water ship 23 surrounds the lower part of the loop of the outer sieve 6, whereby this part is encapsulated.
  • the dragged on the Siebober configuration with liquid is stripped by curved guide devices 19, 20, 21, 22 wirbelarm, deflected and fed to the white water ship 23.
  • 11 guide devices 17, 18 are arranged outside of the space formed by the loop of the outer screen 6.
  • the boundary layer of water mist entrained by the outer screen 6 is caught in the region of the curvature of the outer screen 6 and returned to the outer screen 6 in the form of a water layer and then controlled, for example via the headbox jet 4, dissipated.
  • the gap has an initial height of less than 100mm and a final height of less than 30mm.
  • the gap in front of the head box 3 is sucked through the headbox jet 4 by the propulsion jet principle and thus the water mist entrained by the outer sieve 6 is removed via the forming area into the white water box 12.
  • the forming roller 7 has a closed jacket. The drainage is thus carried out exclusively by the outer sieve.
  • the FIG. 2 shows a schematic representation of the white water box 12 FIG. 1 in cross section.
  • the white water box 12 is machine-wide executed.
  • the white water jet 13 flows from above into the opening of the white water box 12.
  • this deflection devices 24 are provided, wherein two adjacent deflection devices 24 form a channel, that is a flow channel for the white water 13, wherein the distance of Umlenkvor-directions 24th is so small that the training of in the space formed by the loop of Aussensiebes inside extending flow vortex is avoided.
  • the deflecting devices 24 have surfaces which are inclined relative to one another by a deflection angle, the deflection angle in the flow direction between adjacent surfaces being less than 20 °. This avoids vortexes and backflows.
  • the screen water is returned to the drive side of the paper machine via the lateral white water removal 25 in the manufacturing process.
  • the lateral sieve-water discharge 25 can be directly drained via a vacuum device or via a downpipe. This allows the discharge capacity to be adapted to the amount of white water.

Landscapes

  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)

Claims (9)

  1. Unité (1) de formation de feuille pour machine à papier, en particulier machine à mouchoirs en papier, en vue de fabriquer une nappe fibreuse (2), et présentant un déversoir (3) de matière délivrant un jet (4) de suspension ainsi qu'un tamis intérieur (5) et qu'un tamis extérieur (6) qui forment chacun une boucle fermée,
    un élément de façonnage (7) étant disposé à l'intérieur de la boucle du tamis intérieur (5) et des cylindres de guidage (8, 9, 10, 11) ainsi qu'un caisson (12) à eau de tamisage qui reprend l'eau de tamisage (13) apparaissant au niveau de l'élément de façonnage (7) étant disposés à l'intérieur de la boucle du tamis extérieur (6),
    le tamis intérieur (5) et le tamis extérieur (6) formant un interstice de réception du jet de suspension (4) et entourant au moins en partie l'élément de façonnage (7) dans une zone de renvoi (14), caractérisée en ce que
    dans la zone de renvoi (14), un élément de guidage à la largeur de la machine qui se termine en amont du caisson à eau de tamisage et qui pénètre qu'en partie dans le caisson à eau de tamisage est disposé à l'intérieur de la boucle du tamis extérieur (6) de telle sorte que l'eau de tamisage (13) est transformée en un jet et est déviée dans le caisson (12) à eau de tamisage de telle sorte que soit formée une surface de contact entre le jet et l'espace (16) de réception du brouillard d'eau formé par la boucle du tamis extérieur (6),
    un espace intermédiaire étant formé entre l'élément de guidage (15) et l'élément de façonnage (7), le profil de l'élément de guidage (15) suivant essentiellement le contour de l'élément de façonnage (7) et étant sélectionné de telle sorte que l'espace intermédiaire présente un profil divergent dans la direction d'avancement et/ou de telle sorte qu'au niveau d'au moins l'un des cylindres de guidage (8, 9, 10, 11) du tamis extérieur (6), un ensemble de guidage (17, 18) à la largeur de la machine soit prévu à l'extérieur de l'espace (16) formé par la boucle du tamis extérieur (6), l'ensemble de guidage (17, 18) formant un interstice convergent vers le tamis extérieur (6) dans la direction d'avancement.
  2. Unité (1) de formation de feuille selon la revendication 1, caractérisée en ce que l'élément de façonnage (7) est formé d'un cylindre.
  3. Unité (1) de formation de feuille selon la revendication 1, caractérisée en ce que l'élément de guidage (15) est sélectionné de telle sorte qu'au début de l'espace intermédiaire, la distance par rapport à l'élément de façonnage soit comprise entre 10 mm et 60 mm et de préférence entre 20 mm et 40 mm.
  4. Unité (1) de formation de feuille selon l'une des revendications précédentes, caractérisée en ce que le caisson (12) à eau de tamisage présente des ensembles de déviation (24) qui dévient latéralement l'eau de tamisage (13) amenée et le brouillard d'eau (26) entraîné avec elle.
  5. Unité (1) de formation de feuille selon la revendication 4, caractérisée en ce que deux ensembles voisins de déviation (24) forment un canal, la distance entre les ensembles de déviation (24) étant suffisamment petite pour éviter la formation découlant en tourbillons qui s'étendent dans l'espace (16) formé par la boucle du tamis extérieur (6).
  6. Unité (1) de formation de feuille selon les revendications 4 ou 5, caractérisée en ce que les ensembles de déviation (24) présentent des surfaces inclinées l'une par rapport à l'autre d'un angle de déviation, l'angle de déviation entre des surfaces voisines dans la direction d'écoulement étant inférieur à 20°.
  7. Unité (1) de formation de feuille selon la revendication 1, caractérisée en ce que l'interstice présente une hauteur initiale inférieure à 150 mm, de préférence inférieure à 100 mm, en particulier inférieure à 80 mm, et une hauteur finale inférieure à 50 mm, de préférence inférieure à 30 mm et en particulier inférieure à 10 mm.
  8. Unité (1) de formation de feuille selon les revendications 1 ou 7, caractérisée en ce qu'un ensemble de guidage (18) est associé au cylindre de guidage (11) voisin de l'amenée (3) de matière de telle sorte que l'espace formé par l'ensemble de guidage (18) et le tamis extérieur (6) puisse être aspiré par l'effet d'entraînement du jet (4) de suspension.
  9. Procédé de conduite d'une unité (1) de formation de feuille selon la revendication 1, présentant un déversoir (3) de matière délivrant un jet (4) de suspension ainsi qu'un tamis intérieur (5) et qu'un tamis extérieur (6) qui forment chacun une boucle fermée,
    un élément de façonnage (7) étant disposé à l'intérieur de la boucle du tamis intérieur (5) et des cylindres de guidage (8, 9, 10, 11) ainsi qu'un caisson (12) à eau de tamisage qui reprend l'eau de tamisage (13) apparaissant au niveau de l'élément de façonnage (7) étant disposés à l'intérieur de la boucle du tamis extérieur (6),
    le tamis intérieur (5) et le tamis extérieur (6) formant un interstice de réception du jet de suspension (4) et entourant au moins en partie l'élément de façonnage (7) dans une zone de renvoi (14), caractérisée en ce que
    dans la zone de renvoi (14), un élément de guidage à la largeur de la machine qui se termine en amont du caisson à eau de tamisage et qui pénètre qu'en partie dans le caisson à eau de tamisage est disposé à l'intérieur de la boucle du tamis extérieur (6) de telle sorte que l'eau de tamisage (13) est transformée en un jet et est déviée dans le caisson (12) à eau de tamisage de telle sorte que soit formée une surface de contact entre le jet et l'espace (16) de réception du brouillard d'eau formé par la boucle du tamis extérieur (6),
    un espace intermédiaire étant formé entre l'élément de guidage (15) et l'élément de façonnage (7), le profil de l'élément de guidage (15) suivant essentiellement le contour de l'élément de façonnage (7) et étant sélectionné de telle sorte que l'espace intermédiaire présente un profil divergent dans la direction d'avancement et/ou de telle sorte qu'au niveau d'au moins l'un des cylindres de guidage (8, 9, 10, 11) du tamis extérieur (6), un ensemble de guidage (17, 18) à la largeur de la machine soit prévu à l'extérieur de l'espace (16) formé par la boucle du tamis extérieur (6), l'ensemble de guidage (17, 18) formant un interstice convergent vers le tamis extérieur (6) dans la direction d'avancement, de telle sorte que l'énergie cinétique du jet (4) de suspension, de l'eau de tamisage extraite et/ou du tamis extérieur (6) est utilisée pour évacuer de manière contrôlée le brouillard d'eau.
EP11761603.7A 2010-10-19 2011-09-28 Unité de formation de feuille pour fabriquer une bande de matériau et procédé pour faire fonctionner l'unité de formation de feuille Active EP2630293B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010042604 DE102010042604A1 (de) 2010-10-19 2010-10-19 Blattbildungseinheit zur Herstellung einer Materialbahn und Verfahren zum Betreiben der Blattbildungseinheit
PCT/EP2011/066832 WO2012052263A1 (fr) 2010-10-19 2011-09-28 Unité de formation de feuille pour fabriquer une bande de matériau et procédé pour faire fonctionner l'unité de formation de feuille

Publications (2)

Publication Number Publication Date
EP2630293A1 EP2630293A1 (fr) 2013-08-28
EP2630293B1 true EP2630293B1 (fr) 2018-01-10

Family

ID=44719935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11761603.7A Active EP2630293B1 (fr) 2010-10-19 2011-09-28 Unité de formation de feuille pour fabriquer une bande de matériau et procédé pour faire fonctionner l'unité de formation de feuille

Country Status (5)

Country Link
US (2) US8784614B2 (fr)
EP (1) EP2630293B1 (fr)
CN (1) CN103270215B (fr)
DE (1) DE102010042604A1 (fr)
WO (1) WO2012052263A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014102610A1 (de) * 2014-02-27 2015-08-27 Windmöller & Hölscher Kg Absaugkanal für eine Absaugvorrichtung zur Förderung von geschnittenen Abfallstreifen einer Folienbahn

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002910A1 (fr) 1981-02-28 1982-09-02 Zag Heinz Dispositif pour deshydrater de maniere continue une feuille continue de fibres
US5225043A (en) * 1989-04-04 1993-07-06 Sulzer-Escher Wyss Gmbh Twin wire former with water guide element over the forming zone
DE3910892A1 (de) * 1989-04-04 1990-10-11 Escher Wyss Gmbh Doppelsiebformer
US6231723B1 (en) 1999-06-02 2001-05-15 Beloit Technologies, Inc Papermaking machine for forming tissue employing an air press
DE10232125A1 (de) * 2002-07-16 2004-02-05 Voith Paper Patent Gmbh Siebpartie zur Herstellung einer mehrlagigen Faserstoffbahn
DE10255908A1 (de) * 2002-11-29 2004-07-08 Voith Paper Patent Gmbh Doppelsiebformer
DE102009002567A1 (de) * 2009-04-22 2010-10-28 Voith Patent Gmbh Vorrichtung zum Abführen von Schleuderwasser an einem Umlenkpunkt

Also Published As

Publication number Publication date
US20140290885A1 (en) 2014-10-02
EP2630293A1 (fr) 2013-08-28
DE102010042604A1 (de) 2012-04-19
WO2012052263A1 (fr) 2012-04-26
CN103270215A (zh) 2013-08-28
US9011642B2 (en) 2015-04-21
US8784614B2 (en) 2014-07-22
CN103270215B (zh) 2016-07-06
US20130233502A1 (en) 2013-09-12

Similar Documents

Publication Publication Date Title
EP1120490B1 (fr) Forme et procédé pour la production d'une bande de papier tissu
EP2699728B1 (fr) Appareil et procédé de fabrication d'une bande de fibre
EP0933473A2 (fr) Formeur a deux toiles
DE102005054510A1 (de) Tissuemaschine
EP1397553B1 (fr) Procede et machine permettant de produire des bandes de matiere fibreuse
EP1120491B1 (fr) Machine et procédé pour la production d'une bande de papier tissu
WO2012113467A1 (fr) Section de presse d'une machine à fabriquer une bande de matière fibreuse
EP1852551B1 (fr) Dispositif d'égouttage
EP2126202B1 (fr) Procédé d'égouttage de pâte de cellulose et installation d'égouttage pour la réalisation du procédé
EP2630293B1 (fr) Unité de formation de feuille pour fabriquer une bande de matériau et procédé pour faire fonctionner l'unité de formation de feuille
DE202017106978U1 (de) Siebpartie, insbesondere eine umgebaute Siebpartie
DE4443874A1 (de) Verfahren zur Entwässerung einer Papierfaserstoffschicht in einem Doppelsieb-Former und Vorrichtung zu seiner Durchführung
AT505760B1 (de) Vorrichtung und verfahren zur entwasserung einer materialbahn
EP2096207B1 (fr) Dispositif de moulage à tamis oblique d'une machine destinée à la fabrication d'une bande de matière fibreuse à partir d'au moins une suspension de matière fibreuse
EP1659211B1 (fr) Système de formation d'une machine pour fabriquer une bande fibreuse
WO2017162685A1 (fr) Dispositif et procédé de fabrication d'une bande de matière fibreuse multicouche
WO2008077856A1 (fr) Dispositif de fabrication d'une bande de matière fibreuse
DE102021113491A1 (de) Formierpartie einer Faserbahn-Herstellungslinie
EP1489229B1 (fr) Section de formage à deux toiles d'une machine de fabrication d'une bande de matériau fibreux
DE4208681A1 (de) Nassteil einer doppelsieb-papiermaschine
DE10009535A1 (de) Zweisiebformer
WO2010091915A1 (fr) Formeur à double toile
DE10014322A1 (de) Doppelsiebformer
DE10309050A1 (de) Vorrichtung zur Herstellung einer Faserstoffbahn
DE112006001155T5 (de) Verfahren und Vorrichtung zur Verhinderung der Ausbildung von Nebel in dem Siebbereich einer Papiermaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20130521

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20161124

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502011013574

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: D21F0009000000

Ipc: D21F0001400000

RIC1 Information provided on ipc code assigned before grant

Ipc: D21F 9/00 20060101ALI20170905BHEP

Ipc: D21F 1/66 20060101ALI20170905BHEP

Ipc: D21F 1/40 20060101AFI20170905BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20171013

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 962560

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011013574

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180410

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180510

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180410

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180411

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011013574

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

26N No opposition filed

Effective date: 20181011

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180928

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180930

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180930

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180930

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20110928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180110

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20230921

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20230920

Year of fee payment: 13

Ref country code: DE

Payment date: 20230920

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230927

Year of fee payment: 13